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V4L/DVB (13979): [STV090x] Added possibility to set a fixed TS output clock. 

This could be useful for p.e. Common Interface applications where data rate is limited.

Signed-off-by: Andreas Regel <andreas.regel@gmx.de>
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Andreas Regel 2010-01-05 19:22:07 -03:00 committed by Mauro Carvalho Chehab
parent c369b7c282
commit f91e59cb5e
2 changed files with 67 additions and 0 deletions
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65
drivers/media/dvb/frontends/stv090x.c
View File

@ -4199,6 +4199,71 @@ static int stv090x_set_tspath(struct stv090x_state *state)
default: default:
break; break;
} }
if (state->config->ts1_clk > 0) {
u32 speed;
switch (state->config->ts1_mode) {
case STV090x_TSMODE_PARALLEL_PUNCTURED:
case STV090x_TSMODE_DVBCI:
default:
speed = state->internal->mclk /
(state->config->ts1_clk / 4);
if (speed < 0x08)
speed = 0x08;
if (speed > 0xFF)
speed = 0xFF;
break;
case STV090x_TSMODE_SERIAL_PUNCTURED:
case STV090x_TSMODE_SERIAL_CONTINUOUS:
speed = state->internal->mclk /
(state->config->ts1_clk / 32);
if (speed < 0x20)
speed = 0x20;
if (speed > 0xFF)
speed = 0xFF;
break;
}
reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
goto err;
if (stv090x_write_reg(state, STV090x_P1_TSSPEED, speed) < 0)
goto err;
}
if (state->config->ts2_clk > 0) {
u32 speed;
switch (state->config->ts2_mode) {
case STV090x_TSMODE_PARALLEL_PUNCTURED:
case STV090x_TSMODE_DVBCI:
default:
speed = state->internal->mclk /
(state->config->ts2_clk / 4);
if (speed < 0x08)
speed = 0x08;
if (speed > 0xFF)
speed = 0xFF;
break;
case STV090x_TSMODE_SERIAL_PUNCTURED:
case STV090x_TSMODE_SERIAL_CONTINUOUS:
speed = state->internal->mclk /
(state->config->ts2_clk / 32);
if (speed < 0x20)
speed = 0x20;
if (speed > 0xFF)
speed = 0xFF;
break;
}
reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
goto err;
if (stv090x_write_reg(state, STV090x_P2_TSSPEED, speed) < 0)
goto err;
}
reg = stv090x_read_reg(state, STV090x_P2_TSCFGH); reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01); STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0) if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)

2
drivers/media/dvb/frontends/stv090x.h
View File

@ -70,6 +70,8 @@ struct stv090x_config {
u8 ts1_mode; u8 ts1_mode;
u8 ts2_mode; u8 ts2_mode;
u32 ts1_clk;
u32 ts2_clk;
enum stv090x_i2crpt repeater_level; enum stv090x_i2crpt repeater_level;